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Diff for /mandoc/eqn.7 between version 1.19 and 1.26

version 1.19, 2011/07/23 09:47:25 version 1.26, 2011/08/18 08:58:43
Line 30  and
Line 30  and
 .Xr man 7  .Xr man 7
 .Ux  .Ux
 manual pages.  manual pages.
 This manual describes the subset of the  It describes the
   .Em structure
   of an equation, not its mathematical meaning.
   This manual describes the
 .Nm  .Nm
 language accepted by the  language accepted by the
 .Xr mandoc 1  .Xr mandoc 1
 utility.  utility, which correspond to the Second Edition eqn specification (see
   .Sx SEE ALSO
   for references).
 .Pp  .Pp
 Equations within  Equations within
 .Xr mdoc 7  .Xr mdoc 7
Line 66  eqn     : box | eqn box
Line 71  eqn     : box | eqn box
 box     : text  box     : text
         | \*q{\*q eqn \*q}\*q          | \*q{\*q eqn \*q}\*q
         | \*qdefine\*q text text          | \*qdefine\*q text text
           | \*qndefine\*q text text
           | \*qtdefine\*q text text
         | \*qgfont\*q text          | \*qgfont\*q text
         | \*qgsize\*q text          | \*qgsize\*q text
         | \*qset\*q text text          | \*qset\*q text text
         | \*qundef\*q text          | \*qundef\*q text
         | box pos box          | box pos box
         | box mark          | box mark
           | \*qmatrix\*q \*q{\*q [col \*q{\*q list \*q}\*q ]*
         | pile \*q{\*q list \*q}\*q          | pile \*q{\*q list \*q}\*q
         | font box          | font box
         | \*qsize\*q text box          | \*qsize\*q text box
         | \*qleft\*q text eqn [\*qright\*q text]          | \*qleft\*q text eqn [\*qright\*q text]
   col     : \*qlcol\*q | \*qrcol\*q | \*qccol\*q | \*qcol\*q
 text    : [^space\e\*q]+ | \e\*q.*\e\*q  text    : [^space\e\*q]+ | \e\*q.*\e\*q
 pile    : \*qlpile\*q | \*qcpile\*q | \*qrpile\*q  pile    : \*qlpile\*q | \*qcpile\*q | \*qrpile\*q | \*qpile\*q
 pos     : \*qover\*q | \*qsup\*q | \*qsub\*q | \*qto\*q | \*qfrom\*q  pos     : \*qover\*q | \*qsup\*q | \*qsub\*q | \*qto\*q | \*qfrom\*q
 mark    : \*qdot\*q | \*qdotdot\*q | \*qhat\*q | \*qtilde\*q | \*qvec\*q  mark    : \*qdot\*q | \*qdotdot\*q | \*qhat\*q | \*qtilde\*q | \*qvec\*q
         | \*qdyad\*q | \*qbar\*q | \*qunder\*q          | \*qdyad\*q | \*qbar\*q | \*qunder\*q
 font    : \*qroman\*q | \*qitalic\*q | \*\*qbold\*q  font    : \*qroman\*q | \*qitalic\*q | \*qbold\*q | \*qfat\*q
 list    : eqn  list    : eqn
         | list \*qabove\*q eqn          | list \*qabove\*q eqn
 space   : [\e^~ \et]  space   : [\e^~ \et]
Line 143  foo bar 'baz'
Line 152  foo bar 'baz'
 .Ed  .Ed
 .Pp  .Pp
 Self-referencing definitions will raise an error.  Self-referencing definitions will raise an error.
   The
   .Cm ndefine
   statement is a synonym for
   .Cm define ,
   while
   .Cm tdefine
   is discarded.
 .It Cm gfont  .It Cm gfont
 Set the default font of subsequent output.  Set the default font of subsequent output.
 Its syntax is as follows:  Its syntax is as follows:
Line 171  The
Line 187  The
 and  and
 .Ar val  .Ar val
 are not expanded for replacements.  are not expanded for replacements.
   This statement is a GNU extension.
 .It Cm undef  .It Cm undef
 Unset a previously-defined key.  Unset a previously-defined key.
 Its syntax is as follows:  Its syntax is as follows:
Line 183  is discarded.
Line 200  is discarded.
 The  The
 .Ar key  .Ar key
 is not expanded for replacements.  is not expanded for replacements.
   This statement is a GNU extension.
 .El  .El
 .Sh COMPATIBILITY  .Sh COMPATIBILITY
 This section documents the compatibility of mandoc  This section documents the compatibility of mandoc
Line 201  In mandoc, this is interpreted as a comment.
Line 219  In mandoc, this is interpreted as a comment.
 In troff, The circumflex and tilde white-space symbols map to  In troff, The circumflex and tilde white-space symbols map to
 fixed-width spaces.  fixed-width spaces.
 In mandoc, these characters are synonyms for the space character.  In mandoc, these characters are synonyms for the space character.
   .It
   The troff implementation of
   .Nm
   allows for equation alignment with the
   .Cm mark
   and
   .Cm lineup
   tokens.
   mandoc discards these tokens.
   The
   .Cm back Ar n ,
   .Cm fwd Ar n ,
   .Cm up Ar n ,
   and
   .Cm down Ar n
   commands are also ignored.
 .El  .El
 .Sh SEE ALSO  .Sh SEE ALSO
 .Xr mandoc 1 ,  .Xr mandoc 1 ,
Line 241  was added in 2011.
Line 275  was added in 2011.
 This  This
 .Nm  .Nm
 reference was written by  reference was written by
 .An Kristaps Dzonsons Aq kristaps@bsd.lv .  .An Kristaps Dzonsons ,
   .Mt kristaps@bsd.lv .

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Removed from v.1.19  
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  Added in v.1.26

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